Characteristics and Environmental Significance of Lacustrine Oncolites in Paleogene Guanzhuang Formation in Pingyi Basin, Shandong Province in Eastern China
详细信息
- 责任者：Zhang Kuangming (Exploration Southern Company ; SINOPEC ; Chengdu 610041 ; China) ; Huang Wenhui
- 刊名：Acta Sedimentologica Sinica
- 出版年：2013
- 卷期：31(2)
- 关键词：核形石 ; oncolites ; 沉积环境 ; sedimentary environment ; 山东 ; Shandong Province
- 页码：p.259-268
- 图表：illus., 30 refs.
- 分类号：0803
- issnNo：ISSN1000-0550
- isbnNo：CN62-1038/P
摘要
Many types of oncoids,which have great significance for sedimentary environment research, are well developed in Paleogene Guanzhuang Formation in Pingyi Basin. Based on previous studies,the morphometry,structure,fossil,texture and the characteristics of geochemistry of the oncolites in host area were analyzed by means of field inspection,microscope observation and geochemical test. Based this study,the oncoids were divided into Type A and Type B,and the most fundamental difference between them lies in sedimentary environments where they originated.According to above study,the oncolites developed in a close,dry and hot lake,which was on the stage of transgression.
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